The most thoughtful answer is b
Telescope
Thermometer
Air pump
submarine
Answer: A) the Chief Justice of the Supreme Court appointed by John Adams, who began a process called judicial review
The Confederate troops first fired at Fort Sumter in South Carolina. Less than 34 hours later, the union forces had to surrender to them. The reason this firing occurred, was over the debate on slavery. Sectionalism and secession also played part in beginning the civil war.
The answer is Johannes Gutenberg
